package com.peng.dao;

import com.peng.entity.Department;
import org.springframework.stereotype.Repository;

import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

//部门dao
@Repository
public class DepartmentDao {
    //1 模拟数据库中的数据
    private static Map<Integer, Department> departments=null;
    static {
        departments=new HashMap<Integer, Department>();//创建一个部门表
        departments.put(101,new Department(101,"教学部"));
        departments.put(102,new Department(102,"市场部"));
        departments.put(103,new Department(103,"后勤部"));
        departments.put(104,new Department(104,"研发部"));
        departments.put(105,new Department(105,"测试部"));
        departments.put(106,new Department(106,"运营部"));

    }
    //获得所有的部门信息
    public Collection<Department> getDepartments(){
        return departments.values();
    }
    //通过id获取部门
    public Department getDepartmentById(Integer id){
        return departments.get(id);
    }

}
